CN109478047B - Intelligent timer switch - Google Patents
Intelligent timer switch Download PDFInfo
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- CN109478047B CN109478047B CN201680087948.2A CN201680087948A CN109478047B CN 109478047 B CN109478047 B CN 109478047B CN 201680087948 A CN201680087948 A CN 201680087948A CN 109478047 B CN109478047 B CN 109478047B
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- timer switch
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- compressor
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- 230000001131 transforming effect Effects 0.000 claims abstract description 4
- 230000001934 delay Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Keying Circuit Devices (AREA)
- Air Conditioning Control Device (AREA)
Abstract
An intelligent timer switch comprises a main control circuit, an interface circuit, a power supply circuit and a display circuit; the master control circuit is used for realizing condition control of a timer switch; the interface circuit is used for connecting the electrical equipment with the compressor, collecting the running state of the electrical equipment to provide for the main control circuit and receiving the control signal of the main control circuit to carry out on-off control on the electrical equipment; the power supply circuit is used for transforming the mains supply into the voltage required by the main control circuit, the interface circuit and the display circuit. When the time reaches the set power supply time, the intelligent timer switch delays for a period of time and then starts the relay to supply power to the equipment; before the time reaches the set power-off time, the running state of the electric appliance is detected in advance, and after the compressor is stopped, the relay is disconnected to power off the equipment. The intelligent timer switch can be used for switching on and off electrical equipment at regular time, and the electrical equipment is protected through condition judgment during switching on and switching off.
Description
Technical Field
The invention belongs to the technical field of household appliances, and particularly relates to an intelligent timer switch.
Background
In many places, due to condition limitation or other factors, power failure can be regularly performed in some time periods (such as night), all power utilization facilities in the range after power failure are forcibly powered off, and the power failure conditions also comprise some household appliances such as refrigerators and freezers; if the compressor on the electrical apparatus such as refrigerator, refrigerator-freezer is forced to cut off the power supply in the course of working, can cause the damage, so for a long time, can lead to the compressor to burn out.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an intelligent timer switch which can be used for switching electrical equipment at regular time and protecting the electrical equipment through condition judgment during switching. The invention is realized by the following technical scheme:
an intelligent timer switch comprises a main control circuit, an interface circuit, a power supply circuit and a display circuit; the master control circuit is used for realizing condition control of a timer switch; the interface circuit is used for connecting the electrical equipment with the compressor, collecting the running state of the electrical equipment to provide for the main control circuit and receiving the control signal of the main control circuit to carry out on-off control on the electrical equipment; the power supply circuit is used for transforming the mains supply into voltage required by the main control circuit, the interface circuit and the display circuit; the display circuit is used for displaying the related information of the timer under the control of the main control circuit.
As a further improvement of the present invention, the main control circuit includes a main control IC, and the main control IC receives timing setting and a reset signal of a user; the master control IC outputs signals to the display circuit to display timing information; the master control IC receives the running state signals of the electrical equipment collected by the interface circuit, and sends out control signals to control the on/off of the relay in the interface circuit after the operation of the master control IC.
As a further improvement of the present invention, the interface circuit includes a relay, an operation state signal acquisition chip, and a socket; the plug of electrical equipment inserts the socket, and the relay is according to the control signal intercommunication of master control circuit or the power supply of disconnection commercial power, and running state signal acquisition chip gathers electrical equipment's running state.
As a further improvement of the present invention, the control logic of the master control circuit is as follows:
(1) when the time reaches the set power supply time, the intelligent timer switch judges whether the delay reaches a first preset time, the compressor is not suitable for restarting within the first preset time after stopping, so that the power cannot be supplied immediately, and when the first preset time reaches, the relay is started to supply power to the equipment;
(2) before the time reaches the outage time of setting for, detect the running state of electrical apparatus in advance, intelligent timer switch judges whether the compressor stops, and the compressor during operation should not directly cut off the power supply, consequently can not cut off the power supply at once, treats that the compressor stops the back, and the disconnection relay gives the equipment outage.
As a further improvement of the invention, the starting and stopping states of the compressor are judged by checking the current magnitude: when the compressor is started, the current is large, and the standby current is very small when the compressor is stopped.
The invention has the beneficial effects that: the invention can switch the electrical equipment at regular time and protect the electrical equipment through condition judgment during switching.
Drawings
FIG. 1 is a block diagram of the configuration of the intelligent timer switch of the present invention;
FIG. 2 is a circuit diagram of the master control circuit of the intelligent timer switch of the present invention;
FIG. 3 is a circuit diagram of an interface circuit for the intelligent timer switch of the present invention;
FIG. 4 is a circuit diagram of the power supply circuit of the intelligent timer switch of the present invention;
fig. 5 is a circuit diagram of a display circuit of the intelligent timer switch of the present invention.
Detailed Description
The invention is further described with reference to the following description and embodiments in conjunction with the accompanying drawings.
The invention designs an intelligent timer switch, which is inserted into an existing socket, then electric appliances such as a refrigerator and a freezer with a compressor are inserted into the switch, the power supply time and the power off time of the electric appliances are set according to requirements, during power supply and power off, condition judgment is firstly carried out, power supply and power off are carried out under the condition allowed, and the damage to the electric appliances is reduced to the maximum extent.
As shown in fig. 1, the intelligent timer switch 100 of the present invention includes a main control circuit 102, an interface circuit 103, a power supply circuit 104 and a display circuit 105. The master control circuit is used for realizing the condition control of the timer switch; the interface circuit is used for connecting the electrical equipment with the compressor, collecting the running state of the electrical equipment to provide for the main control circuit and receiving the control signal of the main control circuit to carry out on-off control on the electrical equipment; the power supply circuit is used for transforming the mains supply into voltage required by the main control circuit, the interface circuit and the display circuit; the display circuit is used for displaying the related information of the timer under the control of the main control circuit.
Fig. 2 is a circuit diagram of a master control circuit. The master IC of the master control circuit can adopt a PMC232-20 chip. The main control circuit is powered by the VDD of the power supply circuit; the master IC accepts timing settings and reset signals of the user (see SET button and done button in fig. 2); the master control IC outputs signals to the display circuit to display information such as timing and the like; the main control IC receives the running state signal Cur of the electrical equipment collected by the interface circuit, and sends out a control signal PowerCtrl to control the on/off of a relay in the interface circuit after the operation of the main control IC.
Fig. 3 is a circuit diagram of an interface circuit. The interface circuit comprises a relay, an operation state signal acquisition chip and a socket. The plug of the electrical equipment is inserted into the socket, the relay is connected or disconnected with the power supply of the commercial power according to the control signal of the main control circuit, and the running state signal acquisition chip acquires the running state of the electrical equipment to obtain a signal Cur to be output to the main control circuit.
Fig. 4 is a circuit diagram of a power supply circuit that transforms mains power to 5V dc power VDD. Fig. 5 is a circuit diagram of a display circuit which receives an output signal of the main control circuit and then displays information such as time, status codes, etc. on a display screen.
The control logic of the master control circuit is as follows:
(1) when the time reaches the set power supply time, the intelligent timer switch judges whether the delay reaches first preset time (for example, 30 seconds), the compressor is not suitable for restarting within the first preset time after stopping, therefore, the power cannot be supplied immediately, and when the first preset time reaches, the relay is started to supply power to the equipment.
(2) Before the time reaches the set power-off time, the running state of the electric appliance is detected in advance, the intelligent timer switch judges whether the compressor is stopped (the starting and stopping states of the compressor are judged by checking the current, namely the current of the compressor is very large when the compressor is started and the standby current is very small when the compressor is stopped), the compressor is not suitable for being directly powered off when in work, so that the power cannot be immediately powered off, and the relay is switched off after the compressor is stopped to power off the equipment.
The invention can switch the electrical equipment at regular time and protect the electrical equipment through condition judgment during switching.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (5)
1. An intelligent timer switch, characterized in that: the intelligent timer switch comprises a main control circuit, an interface circuit, a power supply circuit and a display circuit; the master control circuit is used for realizing condition control of a timer switch; the interface circuit is used for connecting the electrical equipment with the compressor, collecting the running state of the electrical equipment to provide for the main control circuit and receiving the control signal of the main control circuit to carry out on-off control on the electrical equipment; the power supply circuit is used for transforming the mains supply into voltage required by the main control circuit, the interface circuit and the display circuit; the display circuit is used for displaying the related information of the timer under the control of the main control circuit; wherein,
the control logic of the main control circuit is as follows:
1) when the time reaches the set power supply time, the intelligent timer switch judges whether the delay reaches a first preset time, the compressor is not suitable for restarting within the first preset time after stopping, so that the power cannot be supplied immediately, and when the first preset time reaches, the relay is started to supply power to the equipment;
2) before the time reaches the outage time of setting for, detect the running state of electrical apparatus in advance, intelligent timer switch judges whether the compressor stops, and the compressor during operation should not directly cut off the power supply, consequently can not cut off the power supply at once, treats that the compressor stops the back, and the disconnection relay gives the equipment outage.
2. The intelligent timer switch of claim 1, wherein: the main control circuit comprises a main control IC, and the main control IC receives timing setting and reset signals of a user; the master control IC outputs signals to the display circuit to display timing information; the master control IC receives the running state signals of the electrical equipment collected by the interface circuit, and sends out control signals to control the on/off of the relay in the interface circuit after the operation of the master control IC.
3. The intelligent timer switch of claim 1, wherein: the interface circuit comprises a relay, an operation state signal acquisition chip and a socket; the plug of electrical equipment inserts the socket, and the relay is according to the control signal intercommunication of master control circuit or the power supply of disconnection commercial power, and running state signal acquisition chip gathers electrical equipment's running state.
4. The intelligent timer switch of claim 1, wherein: the starting and stopping states of the compressor are judged by checking the current: when the compressor is started, the current is large, and the standby current is very small when the compressor is stopped.
5. The intelligent timer switch of claim 1, wherein: the intelligent timer switch is used for electrical equipment with a compressor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2016/093428 WO2018023645A1 (en) | 2016-08-05 | 2016-08-05 | Intelligent timer switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109478047A CN109478047A (en) | 2019-03-15 |
| CN109478047B true CN109478047B (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680087948.2A Active CN109478047B (en) | 2016-08-05 | 2016-08-05 | Intelligent timer switch |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109478047B (en) |
| WO (1) | WO2018023645A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422130A (en) * | 2019-06-20 | 2019-11-08 | 浙江众泰汽车制造有限公司 | A kind of automobile power supply circuit system and its control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101084376A (en) * | 2004-12-20 | 2007-12-05 | 开利公司 | Prevention of unpowered reverse rotation in compressors |
| CN101154117A (en) * | 2007-09-04 | 2008-04-02 | 深圳市文安电子有限公司 | Method for controlling timed power on/off of computer |
| CN101625544A (en) * | 2008-07-07 | 2010-01-13 | Tcl集团股份有限公司 | System and method for power failure recovery of air conditioner |
| CN202973758U (en) * | 2012-12-20 | 2013-06-05 | 重庆文理学院 | Energy-conservation protector of refrigerator |
| CN202973757U (en) * | 2012-12-20 | 2013-06-05 | 重庆文理学院 | Start-stop time counter of refrigerator |
| CN203178699U (en) * | 2012-12-31 | 2013-09-04 | 深圳市潜力智能技术有限公司 | Intelligent control circuit for air conditioners and system thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201223387Y (en) * | 2008-07-04 | 2009-04-22 | 周湘峻 | Intelligence sphygmomanometer |
| JP2010095158A (en) * | 2008-10-16 | 2010-04-30 | Denso Corp | Vehicular air-conditioning device |
| CN202432645U (en) * | 2011-12-30 | 2012-09-12 | 宁波奥克斯空调有限公司 | Movable dehumidifier |
| CN105388927A (en) * | 2015-12-08 | 2016-03-09 | 上海非众制冷设备有限公司 | Dehumidifier with time controller |
-
2016
- 2016-08-05 CN CN201680087948.2A patent/CN109478047B/en active Active
- 2016-08-05 WO PCT/CN2016/093428 patent/WO2018023645A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101084376A (en) * | 2004-12-20 | 2007-12-05 | 开利公司 | Prevention of unpowered reverse rotation in compressors |
| CN101154117A (en) * | 2007-09-04 | 2008-04-02 | 深圳市文安电子有限公司 | Method for controlling timed power on/off of computer |
| CN101625544A (en) * | 2008-07-07 | 2010-01-13 | Tcl集团股份有限公司 | System and method for power failure recovery of air conditioner |
| CN202973758U (en) * | 2012-12-20 | 2013-06-05 | 重庆文理学院 | Energy-conservation protector of refrigerator |
| CN202973757U (en) * | 2012-12-20 | 2013-06-05 | 重庆文理学院 | Start-stop time counter of refrigerator |
| CN203178699U (en) * | 2012-12-31 | 2013-09-04 | 深圳市潜力智能技术有限公司 | Intelligent control circuit for air conditioners and system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109478047A (en) | 2019-03-15 |
| WO2018023645A1 (en) | 2018-02-08 |
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Effective date of registration: 20211013 Address after: 518000 28f-d14, Fortune Building, No. 88, Fuhua Third Road, Gangxia community, Futian street, Futian District, Shenzhen, Guangdong Province Applicant after: Shenzhen Hanfeng Technology Co.,Ltd. Address before: 518000 513, building 4, Zhongxing Industrial City, Chuangye Road, Nanshan District, Shenzhen, Guangdong Applicant before: Han Xingfeng |
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